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| ||
TROUBLESHOOTING & REPAIR | ||
TROUBLESHOOTING GUIDE |
| Observe Safety Guidelines |
| detailed in the beginning of this manual. | |
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PROBLEMS | POSSIBLE AREAS OF | RECOMMENDED |
(SYMPTOMS) | MISADJUSTMENT(S) | COURSE OF ACTION |
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| FUNCTION PROBLEMS |
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The engine will not return to low | 1. Make sure the idler control | 1. Check the idler control switch |
idle when the welding and auxiliary | switch is set to the “Auto” posi- | and associated leads for loose |
loads are removed. | tion. | or faulty connections. See the |
| 2. Make sure both welding and | Wiring Diagram. |
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| |
| auxiliary loads are removed. | 2. Check the reed switch CR2. It |
| 3. Check for mechanical restric- | may be stuck closed. Replace if |
| necessary. | |
| tions in the idler and throttle link- | |
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| |
| age. | 3. Perform the Idler Solenoid |
| 4. While the engine is running, if | Test. |
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| the oil pressure light is NOT lit, | 4. Check for loose or faulty con- |
| the oil pressure switch may be | nections at the idler PC board. |
| faulty. See the Wiring Diagram. | 5. The idler PC board may be |
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| faulty. Replace. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
